Human Anatomy Chapter 5 Integumentary system

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dahotstuff30
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303387
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Human Anatomy Chapter 5 Integumentary system
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2015-05-30 03:04:50
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stratum basale spinosun granulosun sebaceous gland
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Chapter 5 Integumentary system
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  1. Which epidermal layer is found in thick skin only?

    A)stratum basale
    B)stratum lucidum
    C)stratum corneum
    D)stratum spinosum
    B)stratum lucidum
    (this multiple choice question has been scrambled)
  2. From the basement membrane outward, the strata of the epidermis are

    A)corneum, granulosum, spinosum, basale
    B)basale, spinosum, granulosum, corneum
    C)lucidum, basale, granulosum, corneum
    D)granulosum, spinosum, basale, corneum
    B)basale, spinosum, granulosum, corneum
    (this multiple choice question has been scrambled)
  3. Which of the following are specialized cells found in the deeper layers of the epidermis?


    A)tactile cells
    B)epidermal dendritic cells
    C)melanocytes
    D)all of the above
    D)all of the above
  4. What are the most abundant cells found in the epidermis?

    A)melanocytes
    B)Langerhans cells
    C)Merkel cells
    D)keratinocytes
    D)keratinocytes
    (this multiple choice question has been scrambled)
  5. The epidermis varies within a single individual in which of the following aspects?

    A)thickness, coloration, and skin markings
    B)innervation and blood supply
    C)both a and b
    D)neither a nor b
    A)thickness, coloration, and skin markings
    (this multiple choice question has been scrambled)
  6. The terms thick and thin skin refer to the relative thickness of the

    A)dermis only
    B)epidermis only
    C)cutaneous and subcutaneous layers
    D)entire integument
    B)epidermis only
    (this multiple choice question has been scrambled)
  7. Skin color differences among both individuals and races are mostly the result of

    A)different numbers of melanocytes
    B)both a and b
    C)different colors of melanin
    D)different levels of melanocyte activity
    A)different numbers of melanocytes
    (this multiple choice question has been scrambled)
  8. Which of the following makes no significant contribution to skin color?

    A)hemoglobin
    B)keratin
    C)melanin
    D)carotene
    B)keratin
    (this multiple choice question has been scrambled)
  9. Dermal structures that originate from the invagination of the epidermis include

    A)the accessory organs of the integument
    B)sweat and sebaceous glands, nails, and hair
    C)the integumentary appendages
    D)all of the above
    D)all of the above
  10. Which of the following is not a significant possible health benefit of carotene?

    A)helps maintain normal vision when converted into vitamin A
    B)protects the skin from harmful radiation in sunlight
    C)helps eliminate potentially dangerous molecules produced by metabolism
    D)may boost the number and activity of immune cells
    B)protects the skin from harmful radiation in sunlight
    (this multiple choice question has been scrambled)
  11. Which epidermal pigment protects nuclear DNA by absorbing potentially damaging ultraviolet radiation?

    A)hemoglobin
    B)carotene
    C)keratin
    D)melanin
    D)melanin
    (this multiple choice question has been scrambled)
  12. Limited exposure to ultraviolet radiation is useful because it

    A)reduces swelling in underlying connective tissues
    B)stimulates an increase in melanocyte production
    C)protects against most types of skin cancer
    D)helps epidermal cells convert a steroid to vitamin D3
    D)helps epidermal cells convert a steroid to vitamin D3
    (this multiple choice question has been scrambled)
  13. The two major regions of the dermis are the superficial ____________ layer and the deeper ____________ layer.

    A)reticular; papillary
    B)areolar; adipose
    C)collagenous; elastic
    D)papillary; reticular
    D)papillary; reticular
    (this multiple choice question has been scrambled)
  14. The dermal papillae interlock with deep projections of the epidermis called

    A)tight junctions
    B)epidermal ridges
    C)the papillary layer
    D)desmosomes
    B)epidermal ridges
    (this multiple choice question has been scrambled)
  15. Stretch marks, or striae, are the result of

    A)an overabundance of elastic fibers
    B)torn collagen fibers in the dermis
    C)excessive stretching of the epidermis
    D)all of the above
    B)torn collagen fibers in the dermis
    (this multiple choice question has been scrambled)
  16. Which statement about the subcutaneous layer is false?

    A)also called the hypodermis or superficial fascia, it is not part of the integument
    B)it stabilizes the position of the skin and binds it to the underlying tissues
    C)corresponding to larger body size, it is normally thicker in men than in women
    D)it consists of areolar connective tissue and adipose connective tissue
    C)corresponding to larger body size, it is normally thicker in men than in women
    (this multiple choice question has been scrambled)
  17. Both hair and nails are composed mainly of dead cells packed with

    A)keratin
    B)collagen
    C)carotene
    D)melanin
    A)keratin
    (this multiple choice question has been scrambled)
  18. Another name for a hair is

    A)a nevus
    B)a comedo
    C)an onychium
    D)a pilus
    D)a pilus
    (this multiple choice question has been scrambled)
  19. All of the following are important functions of human hair except

    A)providing insulation for the overall body surface
    B)assisting in the dispersal of pheromones
    C)preventing entry of foreign particles into the eyes, ears, and nose
    D)protecting the scalp from sunburn and injury
    A)providing insulation for the overall body surface
    (this multiple choice question has been scrambled)
  20. The lunula, eponychium, and hyponychium are all structures associated with a

    A)nail
    B)hair follicle
    C)sweat gland
    D)hair
    A)nail
    (this multiple choice question has been scrambled)
  21. The connective tissue root sheath and epithelial root sheath are both components of the

    A)hair bulb
    B)hair follicle
    C)hair papilla
    D)hair root
    B)hair follicle
    (this multiple choice question has been scrambled)
  22. The relatively coarse, pigmented hair of the scalp, eyebrows, and eyelashes is

    A)lanugo
    B)vellus hair
    C)terminal hair
    D)none of the above
    C)terminal hair
    (this multiple choice question has been scrambled)
  23. Variations in hair color may result from

    A)environmental and hormonal factors
    B)genetic differences in the structure of melanin
    C)an age-related decrease in pigment production
    D)all of the above
    D)all of the above
  24. Hairs in the scalp normally grow

    A)about one-third of a millimeter per day for 2 to 5 years
    B)indefinitely, stopping only if the follicle is destroyed
    C)sporadically, with the rate increasing if the hair is cut
    D)to a maximum length of 20 inches before shedding
    A)about one-third of a millimeter per day for 2 to 5 years
    (this multiple choice question has been scrambled)
  25. Which term describes the skin’s normal release of water vapor without noticeable sweat?

    A)sublimation
    B)insensible perspiration
    C)sensible perspiration
    D)dehydration
    B)insensible perspiration
    (this multiple choice question has been scrambled)
  26. Which integumentary exocrine glands are distributed over most of the body surface?

    A)lactiferous and apocrine sweat glands
    B)sebaceous and merocrine sweat glands
    C)sudoriferous and ceruminous glands
    D)all of the above
    B)sebaceous and merocrine sweat glands
    (this multiple choice question has been scrambled)
  27. Apocrine sweat glands occur in all of the following locations except

    A)the palms
    B)the groin
    C)the areola
    D)the axillae
    A)the palms
    (this multiple choice question has been scrambled)
  28. Which type of gland secretes a lipid material that coats the epidermis and hair shafts to provide lubrication and inhibit bacterial growth?

    A)apocrine
    B)sudoriferous
    C)eccrine
    D)sebaceous
    D)sebaceous
    (this multiple choice question has been scrambled)
  29. By producing sensible perspiration, merocrine sweat glands assist in

    A)regulating body temperature through evaporation
    B)ridding the body of excess water and electrolytes
    C)protecting against environmental hazards
    D)all of the above
    D)all of the above
  30. The skin of older persons is more easily damaged and slower to heal because

    A)the epidermis thins as epidermal stem cells decline in number and activity
    B)epidermal dendritic cells proliferate, interfering with the immune response
    C)collagen fibers accumulate through time and crowd out protective cells
    D)all of the above
    A)the epidermis thins as epidermal stem cells decline in number and activity
    (this multiple choice question has been scrambled)

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